ezyoutdoor Bike Computer Waterproof Leisure 14 Functions LCD Display MTB Bicycle Computers Cycling Odometer Sports Speedometer Real-time display of the current speed,trip distance,riding time,trip time,calorie consumption and current time;Easy view of the maximum speed,average speed ,total riding time, total riding distance and rotations per miunte of the wheel Options of 12h/24h systems,stopwatch feature and alert feature for bicycle maintenance;Length unit options of klometer/mile. Imported sensors to provide stable performance, and accurate speed;Multiple purposes for bicycles/motor-bicycles(4"-40");Modern look, waterproof and portable Real-time indication of acceleration or deceleration for easy control of your speed;Size (Computer Console): 4.5 x 4 x 1.1 cm;Size (LCD Display): 3 x 2.5 cm;Sensor Cable Length: 85cm Package included:1 x Cycling Odometer(NOTE:Batteries are NOT included because it is very dangerous to packed with batteries in international shipping service and hope you will understand);Lifetime Warranty;7-15 business days delivery date with tracking number